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    我们开发了一种低成本的内镜成像系统,使用反向电机力 (BEMF) 来减少图像动和扭曲. 这种无传感器的方法可以实现实时可视化,以改善医疗查和手术指导.

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    科学领域:

    • 生物医学工程 生物医学工程
    • 光学成像技术的成像
    • 内镜检查是指内镜检查.

    背景情况:

    • 在内镜成像中,周围扫描对于医疗应用至关重要.
    • 光学连贯断层扫描 (OCT) 提供高速,高分辨率的成像.
    • 图像动和非均的旋转扭曲 (NURD) 阻碍了高速OCT内镜中的实时可视化.

    研究的目的:

    • 开发一种创新的,低成本的内镜解决方案,用于实时的OCT成像.
    • 在高速OCT内镜中克服图像动和NURD的局限性.
    • 为了使得OCT采集与内镜扫描的准确同步.

    主要方法:

    • 使用无刷直流电机进行内镜扫描.
    • 实现了无传感器触发技术,使用反向电机力 (BEMF) 进行同步.
    • 集成的BEMF触发的OCT与福里埃域模式锁定 (FDML) 兆赫兹OCT系统.

    主要成果:

    • 在图像动和NURD (<4 mrad) 中实现了显著的减少.
    • 在高速OCT内镜中启用实时可视化功能.
    • 展示了用于内镜成像的经济有效和可部署的解决方案.

    结论:

    • 由BEMF触发的OCT系统有效地减少了内镜程序中的图像工件.
    • 这种无传感器的方法增强了医疗查和手术指导的实时可视化.
    • 该技术在内镜OCT成像中提供了一个有希望,准确和负担得起的进步.